How to Check Your iPhone or iPad for 32-Bit Apps That Won’t Run on iOS 11

iPhones and iPads will no longer run 32-bit apps with the release of iOS 11 later in 2017. Those apps currently display a message saying they “need to be updated”, and they won’t run at all once you’ve upgraded. Here’s how to check which apps you have installed will stop functioning, if any.
by Chris Hoffman via How-To Geek